The Yankees fan lashes out to insulate from his misery and insecurities. Miserable bastards that they are, they cannot enjoy victory without you feeling as bad as they would have had they lost.
Had the Angels gone all the way, their fans could have gotten through the rest of their days from the magic carpet ride, especially given the Adenhart situation. If the philthies went all the way...bad example; the philthies fan didn't know that his team had won until a fan of the other team was finally able to congratulate him before he got punched in the face.
For the Yankees fan to go on that magic carpet ride, you'd have to replicate 1996, which followed over 10 years of a pretty-much garbage product. At that point, most of those assholes were still waiting on the line to jump on the bandwagon.
For them, winning the World Series is typically a slightly better than break-even event. Anything less is a disaster. They have all that firepower, yet whinge about needing to sign Mauer after next season. And, as evidenced from the talk shows around here this past weekend, winning this World Series wouldn't even get them square because they've had to endure two Red Sox championships and the indignity of blowing a 3-0 lead to them.
So, when they lash out at fans of the losing teams, they are simply projecting their own misery onto the rest of us.